1C7H	Isomerase	date	Feb 19, 2000
title	Crystal Structure Of A Mutant R75a In Ketosteroid Isomerase Psedomonas Putida Biotype B
authors	G.H.Nam, D.H.Kim, D.S.Jang, G.Choi, N.C.Ha, B.H.Oh, K.Y.Choi
compound		source
Molecule: Delta-5-3-Ketosteroid Isomerase Chain: A Synonym: Ksi, Steroid Delta-Isomerase Ec: 5.3.3.1 Engineered: Yes Mutation: Yes		Organism_scientific: Pseudomonas Putida Organism_taxid: 303 Strain: Biotype B Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_cell_line: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pkk
symmetry	Space Group: C 2 2 21	R_factor 0.172 R_Free 0.271
crystal cell	length a length b length c angle alpha angle beta angle gamma 36.374 96.062 74.437 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand		enzyme	Isomerase E.C.5.3.3.1 BRENDA
related structures	by homologous chain: 1E3R, 1W02
Gene Ontology	Chain Function Process Component A
Primary reference	Roles of active site aromatic residues in catalysis by ketosteroid isomerase from Pseudomonas putida biotype B., Kim DH, Nam GH, Jang DS, Choi G, Joo S, Kim JS, Oh BH, Choi KY, Biochemistry 1999 Oct 19;38(42):13810-9. PMID:10529226

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (24 Kb) [Save to disk] Biological Unit Coordinates (1c7h.pdb1.gz) 39 Kb CSU: Contacts of Structural Units for 1C7H Likely Quarternary Molecular Structure file(s) for 1C7H Structure Factors (35 Kb) Retrieve 1C7H in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1C7H from S2C, [Save to disk] Re-refined 1c7h structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1C7H in 3D

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Visual 3D analysis of 1C7H

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Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1C7H, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1c7ha_, region A [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1c7h_A] [1c7h] SWISS-PROT database: [P07445] Domain organization of [SDIS_PSEPU] by SWISSPFAM

Other resources with information on 1C7H

Community annotation for 1C7H at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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